.em {
  height: 1.5em;
  width: 1.5em;

  background-position: center;
  background-repeat: no-repeat;
  background-size: contain;
  display: inline-block;
  vertical-align: middle;
}

.em-checkered_flag {
  background-image: url('emoji/checkered_flag.png');
}
.em-clock1 {
  background-image: url('emoji/clock1.png');
}
.em-clock2 {
  background-image: url('emoji/clock2.png');
}
.em-clock3 {
  background-image: url('emoji/clock3.png');
}
.em-clock4 {
  background-image: url('emoji/clock4.png');
}
.em-clock5 {
  background-image: url('emoji/clock5.png');
}
.em-clock6 {
  background-image: url('emoji/clock6.png');
}
.em-clock7 {
  background-image: url('emoji/clock7.png');
}
.em-clock8 {
  background-image: url('emoji/clock8.png');
}
.em-clock9 {
  background-image: url('emoji/clock9.png');
}
.em-clock10 {
  background-image: url('emoji/clock10.png');
}
.em-clock11 {
  background-image: url('emoji/clock11.png');
}
.em-clock12 {
  background-image: url('emoji/clock12.png');
}
.em-clock130 {
  background-image: url('emoji/clock130.png');
}
.em-clock230 {
  background-image: url('emoji/clock230.png');
}
.em-clock330 {
  background-image: url('emoji/clock330.png');
}
.em-clock430 {
  background-image: url('emoji/clock430.png');
}
.em-clock530 {
  background-image: url('emoji/clock530.png');
}
.em-clock630 {
  background-image: url('emoji/clock630.png');
}
.em-clock730 {
  background-image: url('emoji/clock730.png');
}
.em-clock830 {
  background-image: url('emoji/clock830.png');
}
.em-clock930 {
  background-image: url('emoji/clock930.png');
}
.em-clock1030 {
  background-image: url('emoji/clock1030.png');
}
.em-clock1130 {
  background-image: url('emoji/clock1130.png');
}
.em-clock1230 {
  background-image: url('emoji/clock1230.png');
}
.em-collision {
  background-image: url('emoji/collision.png');
}
.em-date {
  background-image: url('emoji/date.png');
}
.em-information_source {
  background-image: url('emoji/information_source.png');
}
.em-key {
  background-image: url('emoji/key.png');
}
.em-mag_right {
  background-image: url('emoji/mag_right.png');
}
.em-reclaim {
  background-image: url('emoji/reclaim.png');
}
.em-repeat {
  background-image: url('emoji/repeat.png');
}
.em-warning {
  background-image: url('emoji/warning.png');
}
